html, body {
  -webkit-font-smoothing: antialiased;
  text-align: center;
}
.key-wrapper h1 {
  padding: 0;
  margin-bottom: 0vmin;
  font-size: 2.85vmin;
  text-align: center;
}
.key-wrapper h2 {
  margin-bottom: 2vmin;
  font-size: 2.5vmin;
  text-align: center;
}
.key-wrapper a {
  color: rgb(100, 100, 100);
  text-decoration: none;
}
.key-wrapper a, .key-wrapper span {
  cursor: pointer;
  border-bottom: 0.25vmin dotted rgb(255, 255, 255);
  -webkit-transition: .5s;
  -moz-transition: .5s;
  -o-transition: .5s;
  -ms-transition: .5s;
  transition: .5s;
}
.key-wrapper a:hover, .key-wrapper span:hover {
  color: rgb(255, 255, 255);
  border-bottom: 0.25vmin dotted rgb(75, 75, 75);
}
.key-wrapper {
  position: absolute;
  top: calc(50% - 20vmin);
  left:  calc(50% - 40vmin);
  z-index: 20;
}
.key-wrapper ul {
  text-align: center;
  white-space : nowrap;
}
.key-wrapper li {
  display: inline-block;
  margin: 0.5vmin 0.75vmin;
  width: 5vmin;
  height: 5vmin;
  padding: 1vmin;
  border: 1vmin solid rgb(75, 75, 75);
  border-radius: 1vmin;
  line-height: 5vmin;
  text-align: center;
  text-transform: uppercase;
  -moz-user-select: none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-transition: .5s;
  -moz-transition: .5s;
  -o-transition: .5s;
  -ms-transition: .5s;
  transition: .5s;
}
.key-wrapper li:hover {
  cursor: pointer;
  color: rgb(255, 255, 255);
}
[data-code="32"] /*SPACEBAR*/ {
  width: 40vmin;
}
.key-wrapper .active {
  -webkit-transition: 0s;
  -moz-transition: 0s;
  -ms-transition: 0s;
  transition: 0s;
  transform: scale(1.15);
}
.key-wrapper .drum {
  border-color: rgb(0, 255, 100);
  color: rgb(0, 255, 100);
} 
.key-wrapper .drum .active {
  color: rgb(75, 75, 75);
  background-color: rgb(0, 255, 100);
}
.key-wrapper .pad {
  border-color: rgb(255, 225, 0);
  color: rgb(255, 225, 0);
} 
.key-wrapper .pad .active {
  color: rgb(75, 75, 75);
  background-color: rgb(255, 225, 0);
}
.key-wrapper .loop {
  border-color: rgb(255, 100, 0);
  color: rgb(255, 100, 0);
} 
.key-wrapper .loop.active {
  color: rgb(75, 75, 75);
  background-color: rgb(255, 100, 0);
}
.key-wrapper .bass {
  border-color: rgb(255, 0, 75);
  color: rgb(255, 0, 75);
}
.key-wrapper .bass.active {
  color: rgb(75, 75, 75);
  background-color: rgb(255, 0, 75);
}
.key-wrapper .synth {
  border-color: rgb(150, 0, 255);
  color: rgb(150, 0, 255);
} 
.key-wrapper .synth.active {
  color: rgb(75, 75, 75);
  background-color: rgb(150, 0, 255);
}
.key-wrapper .effect {
  border-color: rgb(0, 150, 255);
  color: rgb(0, 150, 255);
} 
.key-wrapper .effect.active {
  color: rgb(75, 75, 75);
  background-color: rgb(0, 150, 255);
}
/*插件来源: http://www.jq22.com/jquery-info11724*/
